Adjustable curtain-roller.



C; A. PETERSON.

ADJUSTABLE CURTAIN ROLLER.

APPLICATION FILED NOV. 13, 1912.

PatentedAug. 19, 1 913.

LummA PLANOGR PHCQ, WASHINGTON. [L c.

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onasnns A. rn rnr son, or Jamnsrown, NEW YORK, AssIeNor. or onn-rniru) T0 OSCAR KALLANDER, or JAMESTOWN, new YORK.

ADJUSTABLE CURTAIN-ROLLER.

Application filed November 13, 1912.

To all whom it may concern:

Be it known that I, CHAnLns A. PETERSON, a citizen of the United States, residing at the city of Jamestown, in the county of Chautauqua and State of New York, have invented certain new and useful Improvements in Adjustable Curtain-Rollers, of which the following, taken in connection with the accompanying drawings, is a specification.

The invention relates to tubular rollers for window shades, and the object of the improvement is, first, to provide a tubular roller having telescoping end sections and means for adjusting said ends; second, to provide a novel construction of the tubular ratchet end and spring for rolling the win dow shade; and the invention consists in the combination and arrangement of the parts as shown in this specification and the accompanying drawings and pointed out in the claims.

In the drawings, Figure 1 is a perspective view of one end of the shade roller, showing the manner of attaching the window shade thereto. Fig. 2 is a lengthwise sectional view of the complete shade roller showing the construction and manner of adjusting thesame. Fig. 3 is a sectional view at line X X in Fig. 2, showing the intermeshing gear rods and the coil spring construction for rolling the window shade. Fig. 4 is a lengthwise sectional view 01 the ratchet and spring section of the tubular roller. Fig. 5 is detail perspective view of. the ratchet end piece; and Fig. 6 is a perspective view of the washer which holds the ratchet end piece in place within the tubular section; and Fig. 7 is a perspective view of the rod for turning the spring by means of the ratchet piece. Fig. 3 is a sectional view of the ratchet section at line Y Y in Fig. 4, showing the arrangement of the dogs on each side of the ratchet piece; and Fig. 9 is a detail elevation of one of the dogs; and Fig. 10 is a perspective view of the end ratchet plate, showing the struck out loops within which the dogs are slidably mounted. Fig. 11 is an elevation of a portion of the upper end of the'window shade, showing the notches therein and the attaching rod inserted through the hem in the shade.

Like numerals of reference refer to corresponding parts in the several views.

The shade roller is composed of the cen- Specification of Letters Patent.

Patented Au. 19,1913.

Serial No. 731,086.

tral outer sheet metal tube section which is designated by the numeral 20, and also the end sections 21 and 22 slidably inserted in section 20. The end sections 21 and 22 are adjustably held in place within the tube 20 by means of the adjusting rods 23 and 24. The ends 25 and 26 of the rods 23 and 24 extend past one another in the central portion of the shade roller and have lengthwise gear teeth out therein so that they mesh in one another and so that when one of said rods is turned it will turn the other. The outer edges of the lengthwise gear teeth on the ends 25 and 26 are threaded, and the central crosswise partition 27 has the double threaded opening 28 therein so that when the rod 23 is turned by means of its end 29, it thereby turns the rod 24 and the threaded peripheries of the lengthwise gear teeth meshing in plate 27 cause the ends 21 and 22 to which the rods 23 and 24 are attached to proportionately move to or from one an other according to the direction in which the rod 23 is turned. The telescoping section 21 consists of a lengthwise tube having the circular end plates therein and the openings for the rod 23 therethrough. A shoulder 30 is provided on the rod 23 adjacent the outer end so as to move said end therewith. The telescoping end section 22 consists of the lengthwise tube with the ends therefor, the ends of the rod 24 being revolubly attached to the inner end 40 at one side, since the rod 23 is preferably placed in the center of the roller so that the end 29 will serve as a journal for that end of the shade roller. It is obvious also that the rod 24 moves the tubular section 22 while attached to one side of the center as readily as though it were attached to the center thereof.

The end section 22 contains the revolu-" bly mounted ratchet piece 31 which has the notched openings 32 on the opposite sides thereof to form the teeth for the ratchet dogs 33. The end 34 has the struck up loops 35 within which the small plates 33 which form the ratchet dogs are slidably inserted so that they slide in and out of the notches 32 as the ratchet piece 31 is turned, but are confined by the outer tube of the part 22 so that they cannot get out of loops 35. The dogs 33 are preferably placed on the inner side of the plate 34 so that dirt and the ravelings from the window shade can not interfere with their action. The ratchet piece 31 is held in line by a washer 36 which rests against the shoulder on the opposite end of the ratchet piece 31 from the end 34, and also has the lengthwise grooves 37 on its opposite sides to receive therein the forked ends 38 of the bar 39 which extends from the ratchet piece 31 to the end 40 of the tubular part 22. The bar 40 has the round end 41 which forms a journal in the end 40 having a shoulder adjacent to the journal 41 so that the bar 31 may be turned by the ratchet piece 31 on the journal 41 in the end 40.

The coil spring 42 is attach-ed to the bar preferably through the notch 43 in said bar at one end and to the end plate 40 at the opposite end. The ratchet piece 31 has its outer end 44 flattened for insertion in the usual notched supporting fixture so that as the shade is drawn down it will wind up the spring 42 by turning the roller with section 22 thereof, around the spring 42 and the bar 39 and ratchet bar 31 thereby giving the spring the required torsional strain, the dogs 33 passing from one notch 32 to the other as they are turned about the ratchet piece 31. V

The window shade 45 has a hem 46 in its upper end with spaced notches 47 therein. The tubular parts 20, 21 and 22 of the shade roller have a lengthwise groove 48 therein and spaced loops 49 of the sheet metal over the groove 48 in the part 20 and corresponding to the spaced notches 49 in the window shade. The loops 49 are preferably formed by leaving the sheet metal in the cylindrical form of the tube 20 for the loops and pressing the sheet metal inward each side of said loops to form the groove 49. A wire or rod 50 is inserted through the hem 46 in the window shade 45 and within or under the loops 49 thereby detachably holding the window shade 45 in its attachment to the shade roller. The groove 48 being made in all three sections 20, 21 and 22 of the tubular shade roller holds the three parts firmly in line so that said sections can not turn within or upon one another.

It is obvious that the notches in the edge of the plates 27, 30, 34, 36 and 40 for the groove 48 in the sheet metal tubes serve the purpose of holding said plates firmly in position against turning and also that this is a necessity since said plates are used as journals for the rods and supports for the gear mechanism by means of which the roller is lengthened or shortened as desired. It is also apparent that the lengthening or shortening of the roller is attained entirely by the positive movement of said rods and gear mechanism.

I claim as new 1. A tubular shade roller comprising a central tubular section, a tubular end section slidably mounted within each end of said central tubular section, and means for simultaneously moving said end sections to or from one another within said central sec tion to thereby adjust the length of said roller.

2. A tubular shade roller comprising a central tube, tubular end sections telescoped in the ends of said central tube, a central crosswise partition in said tube having a threaded opening therein, geared rods attached one to each of said sections and threaded to engage said threaded opening in said central crosswise partition to adjustably move said end sections by turning one of said rods.

3. A tubular shade roller comprising a central tube, tubular end sections slidably mounted within the ends of said central section, a rod revolubly attached to each of said end sections, the central portions of said rods lapping one another, said central portion having lengthwise gear teeth to intermesh one red with the other, right and left threads on the peripheries of said lengthwise gear teeth on said rods, and a central partition in said central tube having a threaded double opening therein to receive said threaded intermeshing rods side by side. 7

4. A shade roller comprising an outer tube, end sections adjustably mounted within said outer tube, one of said sections having a ratchet piece revolubly mounted therein, ratchet teeth in said ratchet piece, said ratchet piece having lengthwise grooves on its opposite sides, a washer to fit over said ratchet piece and hold it in place, a bar having a forked end to fit in said grooves and move with said ratchet piece, a journal bearing on the opposite end of said bar and mounted in the inner end of said end section, a coil spring attached to said bar at one end and to the end plate at the other to give a torsional strain to said roller and turn said roller around said ratchet and spring.

5. A shade roller comprising an outer tube, a tubular end section adjustably mounted in one end of said outer tube, a ratchet piece revolubly mounted in the end plate, a crosswise partition in said end section, said ratchet piece having teeth on its opposite sides, struck out loops in the end plate of said end section, dogs slidably mounted within said struck out loops to engage said ratchet teeth, said ratchet piece having lengthwise grooves on its opposite sides. a bar having forked ends to engage said lengthwise grooves and be held by said ratchet piece, the inner end of said bar revolubly mounted in the inner end plate of said end section, a coil spring attached to said bar at one end and to said end section at the other to give a torsional strain to said end section and roller to turn the-same either direction in relation to one another 10 to lengthen or shorten the roller.

In testimony whereof I have aflixed my signature in the presence of two Witnesses.

CHARLES A. PETERSON.

Witnesses:

H. A. SANDBERG, ARTHUR O. Monsn.

around said bar and ratchet piece, substantially as and for the purpose specified.

6. A shade roller comprising a plurality of telescopically mounted tubular sections, crosswise plates in said sections, notches in said plates, said sections having a length- Wise groove fitting said notches to hold said plates and tubes in alinement and position, and mechanism for moving said sections in five cents each, by addressing the Commissioner of Patents, Washington, D. 0.

Copies of this patent may be obtained for 

